IT – INET OTF – Disturbance testing in OTF, December 11th 13:00 - 17:00 CET (93/13)

| Source: Listing and Trading Operations

NASDAQ OMX will perform internal failover and recovery tests in INET Nordic Test
Environment (OTF) on Wednesday December 11th between 13:00-17:00 CET.

The system will still be open for testing by customers, but please be aware that there
will be outages and market halts in the system due to the testing.

If you have any questions regarding this IT Notice, please contact Tech Support at:
+46 8 405 64 10,

Best regards,